Jewel palette
Emerald Cabin
Five jewel stops with room to breathe — #004f8d grounds, #3678ba and #5294d8 do the talking, #6ca3de softens, #88c0fc lifts. The split-complementary bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
skyjewelfive-stop
#004f8d
#3678ba
#5294d8
#6ca3de
#88c0fc
The generator opens with #004f8d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.